Finding the Fourth Proportional to 1,241,272,382.84, 1,714,590,998.10 and 920,051,536.12
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Solution
The fourth proportional to 1,241,272,382.84, 1,714,590,998.10 and 920,051,536.12 is: 1,270,883,090.15
Step by Step Solution
- Step 1: Write the proportion equation
1,241,272,382.84 : 1,714,590,998.10 = 920,051,536.12 : x - Step 2: Convert to fraction form
1,241,272,382.84/1,714,590,998.10 = 920,051,536.12/x - Step 3: Cross multiply
1,241,272,382.84x = 1,714,590,998.10 × 920,051,536.12 - Step 4: Simplify right side
1,241,272,382.84x = 1,577,512,081,619,428,864 - Step 5: Solve for x
x = 1,577,512,081,619,428,864/1,241,272,382.84 - Step 6: Final answer
x = 1,270,883,090.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.